CN2373561Y - Fish-up-type fracture bridge plug - Google Patents
Fish-up-type fracture bridge plug Download PDFInfo
- Publication number
- CN2373561Y CN2373561Y CN 99211386 CN99211386U CN2373561Y CN 2373561 Y CN2373561 Y CN 2373561Y CN 99211386 CN99211386 CN 99211386 CN 99211386 U CN99211386 U CN 99211386U CN 2373561 Y CN2373561 Y CN 2373561Y
- Authority
- CN
- China
- Prior art keywords
- interior
- sealing
- hanging structure
- main piston
- instrument
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000012856 packing Methods 0.000 claims description 17
- 239000012530 fluid Substances 0.000 claims description 4
- 239000000565 sealant Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Landscapes
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The utility model discloses a fish-up-type fracture bridge plug, which is composed of a seal feeding tool and a sealing and separating tool, wherein, in the seal feeding tool, a ring chamber is composed of an inner sealing tube 2 and an outside cylinder sealing barrel 1; a main piston 6 and the inner sealing tube 2 are locked by a main piston positioning and locking block 5; an auxiliary piston 3 and the main piston 6 are positioned and connected by a positioning shear pin 4; a seat sealing shear pin 9 at the left end of an interconnection sleeve 8 is connected with the inner sealing tube 2, and the right end of the interconnection sleeve 8 is provided with an inner anti-clogging locking block 10 and an outer anti-clogging locking block 11 to form a movable member body; the sealing and separating tool is composed of an outer ring hanging structure and an inner hanging structure. The utility model is suitable for use of sealing and clogging bottom water, sealing well bottoms and oil fracture for oil production wells.
Description
The utility model belongs to producing well packing instrument, particularly a kind of salvagable press-fracturing bridge plug of oil producing operation.
The employed bridging plug kind of dragging for is more both at home and abroad at present, and the scope of application is little, and performance indications are low, overcomes soft or hard resistance ability in operation, the process of going into the well, and can not adapt to multiple hole condition environmental requirement; It is poor to bear one-way high-pressure, and application life is short; It is not thorough to be prone to deblocking, shortcomings such as the fault rate of going into the well height.
The purpose of this utility model is to overcome above technical deficiency, provides a kind of adaptation multiple hole condition environmental requirement, operating pressure height, the salvagable press-fracturing bridge plug that anti-resistance ability is strong.
Task of the present utility model is that the salvagable press-fracturing bridge plug is by sending envelope instrument and packing instrument to form, send the envelope instrument to form ring cavity by interior sealed tube and outside envelope cylinder barrel, main piston and interior sealed tube are by the lock dog locking of main piston location, auxiliary piston and main piston are located by connecting by the location shear pin, sealed tube 2 in the seat envelope shear pin 9 of mutual connection cover left end connects deters lock dog in right-hand member is installed and deters the lock dog formation outward;
The packing instrument is made up of outer shroud hanging structure and interior hanging structure, the outer shroud hanging structure is for deterring lock dog locking packing element and interior cartridge outward, articulate left cone, slips cover, slips, right cone, the interior shutoff that connects, cartridge in interior hanging structure is installed in interior shutoff, articulate with interior pawl spring, the stepping snap is installed at outside annular groove place, by proposing the deblocking shear pin locking of separating on the central tube.
Salvagable press-fracturing bridge plug instrument uses in the down-hole by designing requirement and connects the oil pipe assigned address of going into the well, hydraulic base sealed putting aside, and this instrument is in running order, after finishing using, can descend fishing tool, removes the packing instrument.
The utlity model has following characteristics, one, anti-resistance ability are strong, and instrument is gone into the well does not have mechanical sliding phenomenon when being hampered in the way; Two, instrument is provided with by-pass prot, regulates liquid level pressure reduction naturally, can carry out well cleanout and reverse cleanout; Three, anti-under-well bi-directional High Pressure Difference; Four, slips sand control; Five, easily deblocking, deblocking are thoroughly reliable.
Specify with embodiment below in conjunction with accompanying drawing.
Fig. 1 shows salvagable press-fracturing bridge plug structure chart.
Among the figure, 1-external seal cylinder barrel; 2-interior sealed tube; 3-auxiliary piston; 4-auxiliary piston location shear pin; 5-main piston location lock dog; 6-main piston; 7-steel ball; 8-protect connecing cover; 9-seat envelope shear pin; 10-in deter lock dog; 11-outward deter lock dog; 12-external seal packing element; 13-in carry and separate central tube; 14-interior pawl spring; 15-carry and separate shear pin; 16-stepping snap; 17-interior fluid sealant bobbin; 18-slips cover; 19-left cone; 20-interior cartridge; 21-slips; 22-right cone; 23-interior shutoff
With reference to accompanying drawing 1, the salvagable press-fracturing bridge plug is by sending envelope instrument and packing instrument to form, send the envelope instrument to form ring cavity by interior sealed tube 2 and outside envelope cylinder barrel 1, main piston 6 and interior sealed tube 2 are by lock dog 5 lockings of main piston location, auxiliary piston 3 is located by connecting by location shear pin 4 with main piston 6, the seat envelope shear pin 9 that mutual connection overlaps 8 left ends connects interior sealed tube 2, deters lock dog 10 in right-hand member is installed and deter lock dog 11 outward to constitute the movable piece main bodys.
The packing instrument is made up of outer shroud hanging structure and interior hanging structure, the outer shroud hanging structure is for deterring lock dog 11 locking packing elements 12 and interior fluid sealant bobbin 11 outward, articulate left cone 19, slips cover 18, slips 21, right cone 22, the interior shutoff 23 that connects, cartridge 2 in interior hanging structure is installed in interior shutoff 23, articulate with interior pawl spring 14, stepping snap 16 is installed at outside annular groove place, by proposing deblocking shear pin 15 lockings of separating on the central tube 13.
The salvagable press-fracturing bridge plug course of work, sealed tube 2 connection oil pipes are gone into the well in the salvagable pressure break plug, after arriving desired location, sealed tube 2 intracavity bottoms in the instrument inner chamber drops into steel ball 7 packings, inject highly pressurised liquid to seat envelope instrument then, by sending sealed tube 2 side through hole in the envelope instrument, high pressure liquid stream enters main piston 6 and auxiliary piston 3 inner chambers, promote auxiliary piston 3 and move to left, shear auxiliary piston location shear pin 4 and open main piston location lock dog 5.Promoting main piston 6 moves to right, deter lock dog 10 in opening respectively, deter lock dog 11 outward, stepping snap 16 enters duty, along with pressure constantly increases, promoting the packing element assembly moves to right, make external seal packing element 12 extrusion expansions be adjacent to casing wall, left side cone 19 moves to right and 21 radial displacements of right cone 22 extruding slips, anchor clamp is on casing wall, and cartridge 20 in interior fluid sealant bobbin 17 conical surfaces wedging is when pressure reaches setting value, protect and connect cover 8 places seat envelope shear pins 9 shearings, send envelope instrument and packing instrument to throw off, hold mode no longer changes under the effect of stepping snap 16, and the salvagable press-fracturing bridge plug enters duty.
When needs are salvaged the salvagable press-fracturing bridge plug, the operation fisher with in carry and separate central tube 13 salvaging heads and be connected, in carry and separate central tube 13 and move to left to force to carry and separate shear pin 15 and shear, pawl spring 14 pawl springs locking in opening then, in carry separate central tube 13 drive successively in pawl spring 14, stepping snap 16, interior cartridge 17, left cone 19, slips cover 18, slips 21, right cone 22, outer close packing element 12, interior cartridge 20, slips 21 unclamp and reset, the referred ground of salvagable press-fracturing bridge plug.
Salvagable press-fracturing bridge plug technology art performance indications:
Seat seal pressure: 26 ± 2MPa;
Bear upper and lower pressure reduction :≤40MPa;
Deblocking pulling force :≤30KN;
Operating temperature: 120 ℃-270 ℃
The salvagable press-fracturing bridge plug is applicable to producing well bottom water plugging, sealing shaft bottom and carries out oil pressure and splits use.
Claims (1)
1. one kind by the salvagable press-fracturing bridge plug that send envelope instrument and packing instrument to form, and it is characterized in that:
A. send the envelope instrument to form ring cavity by interior sealed tube 2 and outside envelope cylinder barrel 1, main piston 6 and interior sealed tube 2 are by lock dog 5 lockings of main piston location, auxiliary piston 3 is located by connecting by location shear pin 4 with main piston 6, the seat envelope shear pin 9 that mutual connection overlaps 8 left ends connects interior sealed tube 2, deters lock dog 10 in right-hand member is installed and deter lock dog 11 outward to constitute the movable piece main bodys;
B. the packing instrument is made up of outer shroud hanging structure and interior hanging structure, the outer shroud hanging structure is for deterring lock dog 11 locking packing elements 12 and interior fluid sealant bobbin 11 outward, articulate left cone 19, slips cover 18, slips 21, right cone 22, the interior shutoff 23 that connects, cartridge 2 in interior hanging structure is installed in interior shutoff 23, articulate with interior pawl spring 14, stepping snap 16 is installed at outside annular groove place, by proposing deblocking shear pin 15 lockings of separating on the central tube 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99211386 CN2373561Y (en) | 1999-05-31 | 1999-05-31 | Fish-up-type fracture bridge plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99211386 CN2373561Y (en) | 1999-05-31 | 1999-05-31 | Fish-up-type fracture bridge plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2373561Y true CN2373561Y (en) | 2000-04-12 |
Family
ID=34004350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99211386 Expired - Lifetime CN2373561Y (en) | 1999-05-31 | 1999-05-31 | Fish-up-type fracture bridge plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2373561Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089196A (en) * | 2013-02-06 | 2013-05-08 | 中国石油化工股份有限公司 | Combination processing method of bridge plug seat sealing and sand blast perforating conducted by oil tube and device thereof |
| CN104105839A (en) * | 2012-01-25 | 2014-10-15 | 贝克休斯公司 | Tubular anchoring system and a seat for use in the same |
| CN109989735A (en) * | 2017-12-29 | 2019-07-09 | 中国石油天然气股份有限公司 | Multi-cluster perforation combined hydraulic fracturing sealing device |
| CN116556891A (en) * | 2022-06-10 | 2023-08-08 | 金湖县支点石油科技有限责任公司 | A quick-drillable and long-lasting intubation bridge plug |
-
1999
- 1999-05-31 CN CN 99211386 patent/CN2373561Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104105839A (en) * | 2012-01-25 | 2014-10-15 | 贝克休斯公司 | Tubular anchoring system and a seat for use in the same |
| CN104105839B (en) * | 2012-01-25 | 2017-03-08 | 贝克休斯公司 | Anchor systems for pipes and supports therefor |
| CN103089196A (en) * | 2013-02-06 | 2013-05-08 | 中国石油化工股份有限公司 | Combination processing method of bridge plug seat sealing and sand blast perforating conducted by oil tube and device thereof |
| CN109989735A (en) * | 2017-12-29 | 2019-07-09 | 中国石油天然气股份有限公司 | Multi-cluster perforation combined hydraulic fracturing sealing device |
| CN109989735B (en) * | 2017-12-29 | 2021-03-30 | 中国石油天然气股份有限公司 | Hydraulic releasing multi-cluster perforation combined fracturing sealing device |
| CN116556891A (en) * | 2022-06-10 | 2023-08-08 | 金湖县支点石油科技有限责任公司 | A quick-drillable and long-lasting intubation bridge plug |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104213868B (en) | Desirable bore anchor packer | |
| CN211549659U (en) | Long-life water injection string of offshore oil field | |
| CN2373561Y (en) | Fish-up-type fracture bridge plug | |
| CN112709557A (en) | Safe and long-acting water injection string for offshore oil field and construction method | |
| CN107893641B (en) | Metal packer and method for downhole operation | |
| CN115992661B (en) | Long-term anchoring tool and method of use | |
| CN107893642A (en) | A kind of application method of underground work metal packer | |
| CN2517864Y (en) | Hydraulic deflecting well packer | |
| CN2557691Y (en) | Fishable high pressure bridge plug | |
| CN219101298U (en) | Oil pipe degradable expansion rubber plug | |
| CN201546665U (en) | Recyclable bridge plug | |
| CN206129222U (en) | Recoverable anchoring formula hydraulic pressure packer | |
| CN212479153U (en) | Multifunctional metal sealing type casing head | |
| RU2262582C1 (en) | Detachable connection of pressure pipe string in well | |
| CN2254120Y (en) | Secondary well cleaning device for combined rod type oil pumping unit | |
| CN209990477U (en) | Hydraulically controlled stratum anti-pollution valve capable of being opened and closed repeatedly | |
| CN2521392Y (en) | Natural gas well downhole multifunctional controller | |
| CN115704282B (en) | An independent release water injection packer | |
| CN108661569B (en) | Environment-friendly multifunctional oil extraction process tubular column | |
| CN2903353Y (en) | Washing well packer | |
| CN2736529Y (en) | Sand proof packing tool | |
| CN2616668Y (en) | Throw-dreg-free waterflooding packer | |
| CN213331005U (en) | Double-sealing single-clamping oil layer blast hole plugging tubular column | |
| CN2530030Y (en) | Oil well anti-sand filling device | |
| CN2383970Y (en) | Drilling bridging plug |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |